diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2022-05-12 20:23:05 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-05-13 07:20:17 -0700 |
| commit | a9595b305c0f6cbbf9505325509d95637f6a7062 (patch) | |
| tree | d7d55350b5baa86e47a1fd7cdfef147d2e40528d | |
| parent | da08e9b7932345aff0a748c55f8a25709505f2a3 (diff) | |
| download | linux-a9595b305c0f6cbbf9505325509d95637f6a7062.tar.gz linux-a9595b305c0f6cbbf9505325509d95637f6a7062.tar.bz2 linux-a9595b305c0f6cbbf9505325509d95637f6a7062.zip | |
mm: add folio_mapping_flags()
This is the equivalent of PageMappingFlags and is needed for converting
mm/migrate.c to folios.
Link: https://lkml.kernel.org/r/20220504182857.4013401-25-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | include/linux/page-flags.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index b70124b9c7c1..97eb88dbcbbc 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -650,6 +650,11 @@ __PAGEFLAG(Reported, reported, PF_NO_COMPOUND) #define PAGE_MAPPING_KSM (PAGE_MAPPING_ANON | PAGE_MAPPING_MOVABLE) #define PAGE_MAPPING_FLAGS (PAGE_MAPPING_ANON | PAGE_MAPPING_MOVABLE) +static __always_inline bool folio_mapping_flags(struct folio *folio) +{ + return ((unsigned long)folio->mapping & PAGE_MAPPING_FLAGS) != 0; +} + static __always_inline int PageMappingFlags(struct page *page) { return ((unsigned long)page->mapping & PAGE_MAPPING_FLAGS) != 0; |